Portable toilet



FIG. 1 is a top perspective view of a portable toilet showing an embodiment of my new design;

FIG. 2 is a bottom perspective view of the portable toilet shown in FIG. 1;

FIG. 3 is a top view of the portable toilet shown in FIG. 1;

FIG. 4 is a bottom view of the portable toilet shown in FIG. 1;

FIG. 5 is a front view of the portable toilet shown in FIG. 1;

FIG. 6 is a rear view of the portable toilet shown in FIG. 1;

FIG. 7 is a left side view of the portable toilet shown in FIG. 1; and,

FIG. 8 is a right side view of the portable toilet shown in FIG. 1.

The broken lines form no part of the invention. 

CLAIM The ornamental design for a portable toilet, as shown. 